JPH0715966U - Link type bone for tent - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a skeleton for a tent that has high rigidity when in use and becomes compact when not in use or stored. [Structure] A skeleton 10 is formed by connecting a large number of links 1. Each link 1 includes a pair of longitudinal bearing portions 3 and one central rib 4, and a bearing hole 5 of the bearing portion 3 is provided. Rib 4
It is jointly connected by a connecting pin projecting from the. Abutting surfaces 7 and 8 are provided on one of the joints, and when the abutting surfaces 7 and 8 are abutted, the entire bone body 10 is arched to support the seat of the tent and is bent to the opposite side. And let
It is wound in a spiral shape and becomes compact.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bone portion used for a tent that can be easily stretched or folded for leisure.

[0002]

[Prior art]

 The poles or beams used in tents generally use relatively long rods, which are long and inconvenient during transportation. As a means for eliminating this inconvenience, the one shown in FIG. 12 (Actual Development No. 63-59971) is known. This is a strip-shaped plate a that is foldably connected by pins b to form a frame member c. A tent sheet is sewn with a bag portion into which the frame member c can be extended and inserted, and then inserted into the bag portion. The three-dimensional shape of the sheet is maintained by the frame member c.

However, although the frame member c has a certain degree of rigidity with respect to the two directions of the loads d and d ′ applied in the thickness direction of the plate body a, the frame member c has two rigidity directions in the width direction of the plate body a. It is inconvenient because the load e and e'rotate around the pin b and no rigidity is generated.

[0004]

[Problems to be solved by the device]

 It is an object of the present invention to obtain a skeleton for a tent that is rigid and can be folded with respect to vertical and horizontal loads.

[0005]

[Means for Solving the Problems]

 The means for solving the above problems in the present invention is to abut against one side of a rotational direction of a large number of articulated links at the point where the inclination angle of adjacent links slightly exceeds 180 °. It is characterized by having a surface.

[0006]

[Action]

 Since it has the above-mentioned means, it has rigidity in three directions, two directions parallel to the connecting pin and one direction in which the abutting portion collides, and when it is combined with the tent seat, the opening at both end positions is prevented. , Rigidity also occurs in the remaining one direction. When it is removed from the seat, it is flexible in one direction and can be rolled up compactly.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a link used in the bone portion of the present invention, in which 1 is a link integrally formed of plastic, metal or the like, 2 is a substrate portion thereof, and a thick portion of the substrate portion 2 is provided. A pair of bearings 3 extends rightward from 2a, and a rib 4 projects from the center of the lower surface of the base plate 2. A bearing hole 5 is bored in the bearing 3 and the bearing is formed in the rib 4. A connecting pin 6 that fits into the hole 4 is provided in a protruding manner.

The left and right end portions of the base plate portion 2 are abutting portions 7 and 8 to prevent the linked links 1 and 1 from rotating upward by a predetermined angle or more.

FIG. 2 is a plan view of the link 1, and FIGS. 3 and 4 are cross-sectional views. As is clear from each drawing, a tapered surface 3 a is provided inside the tip of the bearing portion 3, and the end of the connecting pin 6 is provided. A tapered surface 6a is formed on the half surface of the portion so as to face leftward. When connecting the links 1 and 1, when the left end of the rib 4 is pushed into the bearing portions 3 and 3, the tapered surface 6a of the connecting pin 6 pushes the tapered surface 3a of the bearing portion 3 and the gap between the bearing portions 3 and 3 is increased. Expands, and the connecting pin 6 is fitted into the bearing hole 5 at the same position, and the bearing portions 3 and 3 return to the original position and are jointly connected.

FIG. 5 shows a connection state when the links 1 and 1 are connected to form a bone portion 10 for a tent as shown in FIG. 8. As shown on the left side of the drawing, the links 1 and 1 are linearly connected. When arranged in a line, there is a slight gap 9 between the contact surfaces 7 and 8, and the contact surfaces 7 and 8 contact each other with the angle α slightly exceeding 180 ° as shown on the right side of the figure. However, it cannot rotate any further.

However, since the abutting surface is not provided on the other side, that is, the lower side of the joint portion, it is possible to rotate up to an angle at which the top surface of the rib 4 collides with the end surface of the thick portion 2a, that is, an angle of α <90 °. Can move. It is convenient if the insertion links 11 and 12 shown in FIGS. 6 and 7 are connected to both ends of the bone portion 10. The insertion link 11 is formed by projecting a pair of bearing portions 3 each having a bearing hole 5 on one side from a base portion 11a and projecting a insertion pin 13 on the other side, and the other insertion link 12 is A rib 4 having a connecting pin 6 is projected from the base portion 12a, and a inserting pin 14 is projected in the opposite direction.

In order to use the skeleton 10 as a support for a tent, when the ribs 4 are placed outside and the contact surfaces 7, 8 are brought into contact with each other as shown in FIG. 9, the links 1, 1, ... It becomes arched as a whole. By supporting the roof-shaped sheet 15 shown in FIG. 8 in this state or in a state where it is further elastically bent, the shape of the tent can be maintained. Then, when not in use, as shown in FIG. 10, the rib 4 can be bent with the rib 4 inward to be wound in a spiral shape, and can be made compact.

The roof-shaped sheet 15 is combined with a bottom sheet 16, and eyelet holes 17 shown in FIG. 11 are provided at four corners of the bottom sheet 16. By arching the bone part 10 to support the roof-shaped sheet 15 from the inside and inserting the insert pins at both ends into the eyelet holes 17 at the four corners, the arch shape is retained and the upward load is applied. Rigidity also occurs. In addition, each link 1, 1 has a high rigidity against lateral bending due to the fitting portions of the bearing portions 3 and 3 and the rib 4 and the fitting portion of the bearing hole 5 and the connecting pin 6, so that the tent roof shape is high. The sheet 15 can be sufficiently supported.

Note that the skeletons 10 may be arranged in parallel and used in a kamaboko-type tent instead of being formed in a cross shape as shown in FIG. In this case, it is necessary to pull the leg and top of the bone body 10 outward with a rope.

Further, the insertion links 11 and 12 at both ends of the skeleton 10 can be omitted, and in this case, an eyelet hole of the seat can be formed by using an appropriate cord and the bearing hole 5 or the connecting pin 6. You can tie it to 17.

[0016]

[Effect of device]

 As described above, the bone body of the present invention retains the arch shape by curving the abutting surfaces of the links in an abutting state, and curls in the opposite direction to be in a rolled-up state. Very convenient for storage and transportation.

In particular, when used in an arched shape, it has an advantage that it can be used as a sturdy skeleton because it has high rigidity against longitudinal and lateral loads, regardless of the use of short links.

[Brief description of drawings]

FIG. 1 is a perspective view of a link constituting a bone body of the present invention.

FIG. 2 Same as above

3 is a sectional view taken along line 3-3 of FIG.

4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is a partial front view of the embodiment of the present invention.

FIG. 6 is a front view of one end link.

FIG. 7 is a front view of the other end link.

[Figure 8] Usage status explanatory diagram

FIG. 9 is an explanatory view of a curved state

FIG. 10 is an explanatory view of a winding state

FIG. 11 is an explanatory view of a usage state of the end link.

FIG. 12 is an explanatory view of conventional technology.

[Explanation of symbols]

 1 link 2 substrate part 3 bearing part 4 rib 5 bearing hole 6 connecting pin 7, 8 contact surface 9 gap 10 skeleton 11, 12 end link 13, 14 insertion pin

Claims (2)

[Scope of utility model registration request] 1. An abutment surface is provided at one side of a rotational direction of a large number of articulated links in the direction of rotation so as to abut against each other at a point where the inclination angle of adjacent links slightly exceeds 180 °. Link type bone part for tents, characterized by. 2. The link type skeleton for a tent according to claim 1, wherein the link connected to the end is an end link provided with a projecting insertion pin extending in the longitudinal direction.